Products

Product Overview

The Pneumatic Fluorine-Lined Wafer Butterfly Valve (D671F / D671F4 / D671F46) consists of a PTFE-sealed butterfly valve, a pneumatic actuator, and an FRL (Filter, Regulator, Lubricator) triplet. The flow channels, valve disc, and stem are fully lined with high-molecular polymer materials such as F3 (PCTFE), F4 (PTFE), and F46 (FEP), providing excellent anti-corrosion and chemical resistance.

This valve is engineered for corrosive pipelines or clean-service conditions requiring high purity. It safely handles media including alkalis, reducing agents, hydrochloric acid, nitric acid, hydrofluoric acid, aqua regia, organic acids, strong acids, concentrated vinegar, and other highly aggressive fluids. Driven by compressed air, it accepts industrial control signals and works seamlessly with positioners or solenoid valves to achieve accurate modulating control or fast on-off switching. It is widely utilized in food, pharmaceuticals, chemicals, petroleum, electric power, papermaking, and other water supply, drainage, or gas pipeline systems for flow regulation and isolation.

Key Features

1. Innovative & Compact Design: Novel and rational design featuring a lightweight, compact structure that guarantees rapid opening and closing cycles.

2. Low Operating Torque: Low torque requirements ensure effortless, smooth, and highly responsive pneumatic operation.

3. Flexible Installation: Can be installed at any position or angle within the piping network, offering simple and convenient maintenance.

4. Bidirectional Zero Leakage: The internal sealing components are fully replaceable, delivering reliable bidirectional zero-leakage (0%) performance.

5. Aging & Corrosion Resistance: The heavy-duty sealing materials provide outstanding resistance to aging and harsh chemicals, ensuring a prolonged operational lifespan.